Adding machine



May 10, 1932.

J. A. FRIED ET AL ADDING MACHINE Original Filed May 12, 1925 5 Sheets-Sheet l ave W60 J. A. FRIED ET AL 1,857,299

ADDING MACHINE Original Filed May 12, 1925 5 Sheets-Sheet 2 May 10, 1932. v

May 10, 1932. J. A. FRIED ET AL ADDING MACHINE Original Filed May 12 1925 5 Sheets-Sheet 3 M y 10, 1932- J. A. FRIED Ef AL 1,857,299

ADDING MACHINE Original Filed May 12 1925 5 Sheets-Sheet 4 y 10, 1932 J. A. FRIED ET AL 1,857,299

ADDING MACHINE Original Filed May 12, 1925 5 Sheets-Sheet 5 17 if? 13 7 75M 1 ii fm at m [Y Fi wa \*\f\ 8 10 a2 Ma {I 3 44 45 40" 41' 48 W W W W W W arr I I I W Patented May 10, 1932 UNITED STATES PATENT OFFICE.

JEROME FRIED AND CHARLES SCHRODER, OF ITHACA, NEW YORK, ASSIGNOBS, BY

MESNE ASSIGNMENTS, '10 MORSE PRODUCTS, INC., OF ITHACA, NEW YORK, A. COB- IPORAT'ION OF NEW YORK ADDING MACHINE Application filed May 12,1925,- Serial No. 29,794. Renewed February 1, 1927.

This invention relates in general to adding machines and more particularly to the class known as split machines equipped to take an extended total and, for purposes of illustration in this instance, where the left side of the keyboard (hereafter known as designating keys) is used for the listing of numbers to correspond to amounts printed and accumulated by the introduction of items on the right side of the keyboard (hereafter known as amount keys). By splitting off a section of the keyboard and using that section for purely listing purposes, the capacity of the machine would be materially decreased and the size of the items to be listed and totalled would be correspondingly lessened. However, there are many classes of work where this is no disadvantage provided the totaling capacityis in excess of that permitted by the item capacity of the keyboard and our invention has to do with means for extending the later, that side of the machine must also beblocked to prevent the printing of any numbers when a total or a sub-total is being taken. This is done by properly controlling the socalled zero stop but this blocking of the left side in the totaling operation must be eliminated in those columns on that side which are to print an extended total and therefore we have arranged other means to provide zero stops. It is also necessary to have accumulating means for the designating columns which are to print an extended total and in addition means must be provided so that when both designating numbers and amounts are being listed. the accumulating mechanism in the ex tended total column will be disconnected from the stop bar train but that when a total or a sub-total is taken, this accumulating mechanism and the stop bar train will be connected. In split machines of this type it is essential that the printing mechanism. which customarily fires from left to right, will not fire past the point of split in ordinary operation of the machine so that, where a total or. sub-total is taken, the firing of the printing mechanism will be continuous and this is secured by providing means to bridge the aforesaid split. The foregoing has briefly set forth our invention and it will be notedthat it Is governed in actionby the operation of taking a total or sub-total. The full advantages and benefits, will be clear fromthe following description and drawings Where in these drawings:

Fig. 1 is an elevation partly in section showing part of the adding machine mechanism and more particularly part of the extended total mechanism.

Fig. 2 is similar to Fig. 1 with the operating handle at the completion of the stroke and showing the extended total mechanism in operation.

Fig. 3 shows part of the mechanism and more particularly the zero stop for the floating rack.

Fig. 4C is an elevation partly in section showing the connection between the extended total mechanism and the total lever.

Fig. 5 is the same as Fig. 4 except that the connection for the extended'total mechanism has been actuated by the total lever.

Fig. 6 is the front elevation of the printing hammers showing the connection of the split normal mechanism to those hammers.

Fig. 7 is an elevation partly in section of the front keys in the key banks, showing the relation of the key and zero stop release fingers to those keys.

Fig. 8 is a top plan partly in section of Fig. 7 showing the relation of the finger release bar to the key latching and zero stop shutter.

Fig. 9 is a side elevation showing the relation of the finger bar to the latches, keys and zero stop.

Fig. 10 is a detail of the extended total connection to the printing mechanism.

In Fig. 1 which is merely a diagrammatic illustration, we show an adding machine base at 1 upon which is mounted an adding machine mechanism, but inthismechanism only parts necessary for the explanation of invention are shown. The operating handle is shown at 2, attached to the main shaft 3, which operates the lever 4, against the tension of the springs 5, to lower the rack mechanisms mounted on the shaft 6. One rack mechanism has a lever with arms 7 and 8, the former of which carries the rack 9 and the latter connects through the link 10 to a type bar 11. There is a similar rack mechanism for each of the registering wheels 12* with their usual transfer mechanism to' carry accumulations from the lower to the higher orders. Attached to the arm 7 of the lever is the sto bar 63, the positions of which are determined in operation by the particular key which is depressed upon the keyboard. This stop bar and the rack mechanism to which it is attached are carried forward as shown in Fi' 2 by thetension of the spring 14". This ist e usual construction and operation of the stop bars and rack mechanisms of the machine, but for the purpose of explaining our invention we illustrate only the floating type of rack which actuates a registering wheel of a designating column which carries over the accumulation beyond the range of the amount registerin wheels. This carrying over is possible far the reason that our invention covers a method of making an extended total and, therefore, involves connections to bridge over the split in the machine between the amount keys and the designating keys so that this floating rack is. only carried forward on the totaling operation. The printing bars 11 carry type 12 which are actuated by hammers such as 13 which in turn are actuated by the tension of springs 14. These hammers 13 are retracted by the bail 15 and held in their retracted position by the latches 16, pivoted at 17 and held in their normal positions by springs 18. Attached to co-operate with these latches are the triggers 19 mounted on the bail 20 and held against the tension of springs 21 by the studs 22 on the type bars 11. In Fig. 4, which is a rear view partially in section of the machine, there are shown several levers such as 23 with their corresponding stop bars 24 similar in all respects to bar 63 while the floating rack lever is shown at 9", the stop bar at 63 and the upper arm'of the lever at 7. This illustrates the split' in the machine between the rack levers 23 and the rack levers 25, and, to form a connection between the stop bar train (comprising stop bar 63. diverging lever having arms 7 and 8, adjusting link 10 and type bar 11) and the floating rack lever 9". we provide a bar 27 pivoted at 28 so that. it may swing from the plane of the part7 across to contact this floating rack lever 9. This pivoting of the bar 27 is accomplished by'having an upright finger 29 fixed to a bar 30 and this bar.30 which is slidable across the base of the machine, is pivoted at 31 and 32 to links which are in turn pivoted at 33 and 34. Also piv oted at 34 is an arm 35 which has an upright lug 35 contacting with stud 36 on a horizontal bar 36, WhlCll is actuated by the bell crank 37 connected by a suitable mechanism to the total lever 38. Therefore, as this total lever 38 is moved in taking a total, the bar 30 will move across the base and the upright 29 will throw the arm 27 into its operating position, thus coupling the floating rack lever 63 to the arm 7 and permitting the extended total to be printed since the accumulation has been stored in the extended total wheel which is meshed with the floating rack 9. The bar 30 also has a-support 39 upon which is a roller 40 and this roller 40 is adapted to contact and move a lever 41 which has a function to be explained hereafter. The bar 30 is held in this normal inoperative position by the tension of a coil spring 42. The foregoing describes the connecting mechanism etween the stop bar train of the first nonaccumulating column and the extended total accumulating mechanism. 'On the floating rack lever 9 is a downward extension 9? upon which acts the tension spring 9 which serves to actuate the floating rack lever 9'.

This extension 9" is normally in contact with the upright 29 which forms a second and auxiliary zero stop for that column on the keyboard. The function of the spring 9 in the non-totalizing operations is to merely serve to move the floating rack lever 9 and its rack 9 to the zero position, thus causin it to be in proper position for meshing witfi its accumulating wheel. On the keyboard, of which Fig. 7 is a front elevation partly in section, we show three designating keys at 43, 44 and 45 while the keys 46, 47 and 48 are three of the amount keys toward the right of the key board. Each of the keys has a zero stop as at 49, 50,51, 52, 53 and 54, and latch shutters 55 56, 57, 58, 59 and 60. Pivoted at 61 in Fig. 9 is a finger bar 62 having an arm 73 and roller 64 and this roller 64 is contacted by a. lever 65 pivoted at 67 and connected to the total mechanism by the bar 36. It will. also be noted that in Fig. 8 the finger bar 62 has double fingers as at 69 and 70 and single fingers as at 71. The double fingers such as 69 and 70 operate the latch shutters and the zero stops of the amount keys as shown in Fig. 7 while the single fingers 71 operate only the latch shutters of the designating keys. Thus it will be noted that, wherever there are designating keys, the finger bar will have but one finger for the latch shutter and there will be two fingers for the amount keys to operate both the latch shutters and the zerostops. This is so for the reason that, if the standard finger bar were used having two fingers for each bank of designating keys, the zero stops of those keys would be deflected in the same manner as the amount keys as soon as the total lever was moved to the total position. In this event, on every totaling operation, the

stop bars of the designating keys would be allowed to travel their full distance resulting 10 travel their full distance to the 9 stop on the stop bar.

In Fig. 6, the split in the printing mechanism is shown and, in combination with Fi 1, shows the method adopted to bridge the split for automatically printing ciphers in extended totals. In Fig. 6, the hammer 13 is the last hammer on the printing mechanism corresponding to the last bank of the amount keys; that is, all hammers to the right such as 72, 73, 74, 75 and 76 would be for the printing of amounts including the hammer 13. The hammers 77 to 80 inclusive would be for printing the designating numbers. Each of the latches, which retain the hammers in their retracted position, have lips such as 80 extending to the left and in back of each succeeding latch. As will be seen from Fig. 6, in the firing of hammer 77, for instance, it will strike the lip of the next succeeding latch to release that hammer. Therefore, when hammer 77' is fired, all the hammers up to and including 80 would be fired and, similarly, when hammer 13'is fired, all hammers to the right of that one would be released. This must necessarily be so in order to print ciphers to the right of any key depressed. However, when an extended total has been accumulated and a total is to be taken and printed, it is necessary to make a connection between hammers 80 and 13 so that, when hammer 80 is fired, all the hammers to the right of hammer 80 will also be released. This is accomplished by having pivoted on latch 16 '(see Fig. 1) a pawl 81 pivoted at 82 and adapted to be moved by the bail 83 acting on the stud 84 in a slot in this pawl. On the next latch 16 to the left of latch 16 is a stud 85, and the pawl 81 is arranged, when swung upwardly, to contact this stud85, so that, normally, there would be no connection between latches 16 and 16 except when this pawl 81 is swung upwardly. When pawl 81 is thus swung upwardly, it acts to connect the two latches in a manner similar to the manner in which the lips 80 connect the other latches as previously described.

As just stated, bail 83 actuates the pawl 81 about the pivot 82 and in turn this bail is acted upon by the lever 41 loosely mounted on the shaft 6 (see Fig. 1) which lever is moved by the roller 40 mounted on the upright 39 connected to the bar 30 and actuated by lever 38 as shown in Fig. 5. Consequently, as the total lever 38 is moved to take a total, the

roller 40 forces the lever 41 about the shaft 6, moves the bail 83 rearward and rotates the pawl 81 upwardly to contact the stud 85 of the latch 16. Therefore, connection will be made between the latches 16 and 16 and, when the printing operation occurs, the hammers will fire in sequence from the left without interruption just as though the machine were not split.

Having described the means by which we bridge the split throughout the machine to print an extended total we will now describe the operation.

In Fig. 1, the mechanisms are shown in their normal positions. with the operating handle 2 vertical, the hammers retracted and the machine split by having the pawl 81 out of engagement with the stud 85 and, in Fig. 4, the lever 27 so positioned that the stop bar train is out of engagement with the floating rack lever 9. Normal operation of the machine then proceeds with accumulations on the registering wheels of the amount columns and the designating keys printing separate numbers but without accumulation. When it is desired to take a total and assuming that this is an extended total, the total lever 38 I floating rack lever 9*, as shown in Fig. 5, the

roller 40 moves the lever 41 forward and forces the pawl 81 into contact with the stud 85 of the hammer latch 16 and then, upon pulling the handle forward, the type bar attached to the lever 7 will move to a printing position equivalent to the amount accumulated on the registering wheel for the rack 9, the triggers 19 will be released by the pins 22 moving upwardly so that the points of these levers will fall into the recess 86 of the hammer latches 16, and the hammers are released by the bail 20 moving toward the front of the machine to force the latches out of engagement with the hammers and allow printing to be done.

When the total lever 38 was operated, the bar 30 carried the upright 29 out of the path of the extension 9 so that it was free to move and consequently the rack lever 9 followed the stop bar train under the action of the spring 9 inasmuch as the two had been coupled by the lever 27 as aforesaid. This rack lever 9 is returned to its position by the diverging lever restoring bail 7. At the completion of the printing operation the hammers and latches are in the position shown in Fig. 10. Upon the return stroke of the handle the registering wheels are cleared as is common in the art. At the completion of the return stroke of the handle the bail 15 retracts all of the hammers into engagement with the latches and the machines is then clear and ready for repeated operations.

While we have described our invention in this simplest form it is obvious that many variations and changes are possible and that the principle we have disclosed may be used,

in .many ways without departing from its spirit and we desire to have all such changes and variations come within the scope of our claims.

We claim:

names to this specification this 28t day of April 1925.

JEROME A. FRIED. CHARLES SCHRODER.

1. In an adding machine a diverging lever train and a floating rack normally disconnected, connecting means therefor, a total izin mechanism, means associated with the tota izing mechanism normally to inhibit v the action of the floating rack but adapted to release said floating rack and actuate said connecting means in the totalizing operation. 2. In an adding machine, a totalizing mechanism, a diverging lever train, a floating rack normally held inoperative, means to connect said train and said rack and means associated with the totalizing mechanism adapted to release the floating rack and actuate the connecting means in the totalizing operation.

3. In an addingmachine, in combination, a keyboard comprising accumulating and designating sections, printing mechanisms connected to said accumulating and designating sections, means connected with an accumulating section for accumulating a total, means for taking the accumulated total extended into a designating section, said last means including a normally inoperative floating rack, totalizing mechanism, and means operated by said totalizing mechanism for releasing sald floati g rack and connectin it I to the printing mec anism of the desi natlng section associated therewith when ta 'ng an extended total.

4. In an adding machine, in-combination, a keyboard comprising accumulating and designating sections, printing mechanisms connected to said accumulating and designating sections, a registering wheel associated with an accumulating section, a registering Wheel associated with a designating section, transfer mechanism connecting said registering wheels, a normally inoperative floating rack associated with said designating section registering wheel, means for positioning said floating rack and holding it in position, totalizing mechanism, and means comprising said positioning means operated by said totalizing mechanism for releasing said floating rack and connecting it to the printing mechanism of the designating section associated therewith when taking an extended total. 1

5. In anadding machine, in combination, means forming a designating section, accumulating mechanism including a floating rack associated with said designating section, means for normally inhibiting movement of said floating rack, totalizing mechanism, and means operated by said totalizing mechanism 

